28764385

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23291}}^1$

素因数の和:23328

約数の個数: 16

約数和(自身を含む): 39130560

約数和(自身を除く): 10366175

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 23291, 116455, 302783, 442529, 1513915, 2212645, 5752877, 28764385]

約数ペア:

[(1, 28764385), (5, 5752877), (13, 2212645), (19, 1513915), (65, 442529), (95, 302783), (247, 116455), (1235, 23291)]